Housing-cap for rolls



(No Model.)

W. R. JONES.

HOUSING CAP FOR ROLLS.

Patented May 15, I888.-

v 11 r g t v \AJ s s .a WITNESSES.

%AQLZ@ W ZZGZ I UNITED STATES PATENT ()EEicE.

WVILLIAM R. JONES OF BBADIDOOK, PENNSYLVANIA.

HOUSlNG CAP FOR ROLLS.

SPECIFICATION forming part of Letters Patent No. 383,056, dated May 15,1888.

Application filed March 31,1888.

To aZt whom, it may concern.-

Be it known that I, WILLIAM R. J mass, of Braddock, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in HousingOaps for Rolls; and I do hereby declare thefollowing to be a full, clear, and exact description thereof, referencebeing had to the accompanying drawlngs, forming part of thisspecification, in which-- Figure l is a plan view of one of thehousing-caps of a set of rolls, illustrating the inechanism which Iemploy for removing the cap to permit the rolls to be taken from thehousings and to be replaced. Fig. 2 is an end view of the housings. Fig.3 is a side view thereof. Fig. 4. Is an enlarged vertical longitudinalsection through the roller 10. Fig. 5 is a vertical cross-section online or a: of Fig. 4.

Like symbols of reference indicatelike parts in each.

The object of my invention is to provide means for the easy removal andreplacing of the rolls in the housings.

Referring now to the drawings, 2 and 3 repre sent the upright housings,between which the ends of the rolls have their bearings. I only show thehousings at one end ofthe rolls, the construction of the housings at theother end being exactly the same. The housings 2 and 3 are connected atthe top by the usual cap,4., which bridges the space between thehousings and is held in place by pins 1 and 5 and keys 6, which securethe pins to the housings and to the cap.

Heretofore it has been customary in removing the housing-caps from therolls to lift them by means of a crane; but the great weight of the capin many cases makes the operation of lifting it very difficult andtedious. By thus taking up the time of the workmen and necessitating thestopping of the mill during the time when the rolls are being changedthe delay occasioned by the labor of removing and resetting the cap inthe manner heretofore practiced is a serious disadvantage and loss. Ipropose to obviate this and to make the cap of the housings easilyremovable by pivot-ally connecting it at one end to one of the uprightsof the housings and providing it with a circular track, so that the capmay be swung hori- Seria1No.269,084. (No model.)

zontally on its pivot to uncover the space between the housings. This isclearly shown in the drawings. I

At one end the cap 4. has on its under side a boss or projection, 7,which fits in a corresponding seat, 8, on the top of the upright of thehousing. The pin 1 passes through a s0cket,12, on thehousing-cap,'through the boss 7, and into the uprightZ, and forms thepivotal center on which the housing-cap is turned. If desired, theseparts may be reversed, the concavity being put on the cap and the bosson the housing. The shape of these parts may also be varied. The otherend of the cap is also provided with a projection, 9, which fits into agroove on top of housing, this groove extending the entire width of thehousing and made on the are of a circle, whose center is the pin 1, andshaped so as to permit the swinging motion of the cap around pin 1 as apivot. The purpose of this projection is to cause the cap to act as abrace and to prevent the spreading of the housings, and to make themperfectly rigid. It acts in this regard in conjunction with the boss andthe concavity at the pivoted end of the cap. The pin 5 passes through asocket, 13, on the cap, and through the projection 9 into the upright 3of the housing. At the outer end of the cap is j ournaled a roller, 10,arranged to travel on a frame or track, 11, which is made on an arc of acircle whose center is the pin 1.

In the radial motion of the housing-cap the roller bears on the track11, and thus makes the work of moving the cap very easy. It would not bepracticable to set the roller so accurately on the housing-cap that whenthe cap is brought back into position over the housing its end wouldbear solidly on the housing without some special means therefor. Itherefore have provided the roller with a verticallymovable axis, whichcan be raised so as to lift the roller off its bearing on the housingand to cause the weight of the cap to bear directly thereon. I haveshown this in Figs. 4 and 5. The short shaft 14-, on which the roller isjournaled, is set in a socket in the housing cap, wherein it fits sotightly that it cannot easily be turned. That part on which the rolleris journaled is made eccentric to the part of the shaft which fits inthe socket in the housing-cap. The outer end of the shaft is squared, toafford means for grasping it with a wrench and applying sufficient forceto turn it in its socket. If it be thus turned, it is obvious that theeccentricity of the shaft will cause the roller to be moved verticallyto raise it from or to depress it against the track or the top of thehousing. When the housing-cap is to be moved on its pivot 1, as beforeexplained, the roller should be brought into contact with the track, soas to support the weight of the cap, as shown in Fig. 5; but when thecap is brought again into its position over the housings the rollershould be raised so as to permit the cap to rest directly upon thehousings, as shown in Fig. 4.. In order now to move the cap,the pin 5 isremoved,and the shaft 14 is turned so as to depress the roller againstthe surface of the track. The cap may then be swung on the pin 1 as acenter away from the housings, so as to bring it into the position shownby dotted lines in Fig. 1. The caps of the housings at both ends of therolls are arranged in the same way, and when they have been thus swungto one side the housings are left open for the removal or set ting ofthe rolls. When the rolls are set and the cap is swung back into theposition shown inFig. 2, the eccentric-shaft 14 is turned bya wrench, soas to raise the roller 10 from the track, and to cause the cap to restdirectly on the housing. It is then confined in place by the pin 5 andthe keys 6. The motion of the housing-cap on its center is easy and canbe effected with very little labor. This is the means of saving ofconsiderable time and work in the operation of removing and resettingthe rolls, and results directly in as'aving of money to the owners ofthe mill. The value and utility of my invention in this regard will beappreciated by those skilled in the art.

I claim-- 1. An improvement in housing n caps for rolls, which consistsin a housing-cap pivoted at the end and adapted to swing thereon touncover the housings and permit the removal of the rolls, substantiallyas and for the purposes described.

2. An improvement in housing-caps for rolls, which consists in ahousing-cap pivoted at the end, in combination with a'track where by theother end of the housingcap is supported in its swinging motion on saidpivot, substantially as and for thepurposes described.

3. An improvement in housing caps for rolls, which consists in ahousing-cap pivoted at the end, in combination with a track whereby theother end of the housingeap is supported in its swinging motion on saidpivot, and a roller on the housing-cap which bears on said track,substantially as and for the purposes described.

4. An improvement in housingcaps for rolls, which consists in ahousing-cap pivoted at the end and adapted to swing thereon to uncoverthehousings and permit the removal of the rolls, and a roller on whichthe housing-cap travels in its swinging motion, the axis of said rollerbeing movable vertically to remove the Weight of the cap from the rollerand cause it to bear on the housing, substantially as and for thepurposes described.

5. An improvement in housing caps for rolls, which consists in ahousing-cap pivoted at the end and adapted to swing thereon to uncoverthe housings and permit the removal of the rolls, and a curved groove inthe housing in which a projection on the free end of the cap tits andmoves, substantially as and for the purposes described.

6. An improvement in housing caps for rolls, which consists in a housingcap pivoted at the end and adapted to swing thereon to uncover thehousing, said cap being connected with the housing at the pivoted end bya boss on one fitting in a concavity on the other, substantially as andfor the purposes described.

In testimony whereofI havehereunto set my hand this 27th day of March,A. D. 1888.

WILLIAM R. JONES.

\Vitnesses:

THOMAS W. BAKEWELL, W. B. CORWIN.

